Smelting-furnace.



PATENTBD IAN. 10, 1905.

A. E. MANCHESTER. SMELTING PURNAGE.

APPLICATION FILED MAY 9, 1903.

2 SHEETB-SHEET l.

fllzlE/I/b l M Y W41/ No. 779,953. PATENTED JAN. l0, N05. A. E.MANCHESTER. SMBLTING FURNAGE.

APPLICATION FILED MAY 9, 1903.

2 SHEETS-SHEET 2.

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UNITED STATES Patented January 10, 1905.

ALFRED E. MANCHESTER, OF NEVBURGH, NEW YORK.

SIVIELTING-FURNACE.

SPECIFICATION forming' part of Letters Patent No. 779,953, dated January10, 1905.

Application filed May 9, 1903. Serial No. 156,338.

To LM w/wm t may concern:

Be it known that l, ALFRED E. MANCHESTER, a citizen of the UnitedStates, and a resident of Newburgh, in the county of Orange and State ofNew York, have invented a new and useful Improvement inSmelting-Furnaces, of which the following is a specification.

My invention relates to an improvement in smelting-furnaces, and has forits object to provide a new cut-off valve, which is interposed betweenthe furnace and the forehearth, whereby the furnace andforehearth'nozzles may be brought into open communication when the valveis in one position and be closed when the valve is in another position.

A further object is to provide a separable valve of the above charactercomprising two members arranged to be removably secured together andalso arranged to be removably secured, the one member to the nozzle ofthe furnace and the other member to the nozzle of the forehearth.

A still further object is to provide a separable valve which is soarranged that when the two members thereof have been bolted to theirrespective nozzles for closing the same the forehearth may be removedwith its valve member, thus permitting another forehearth, with itscorresponding valve member, to be brought into position to be secured tothe valve member carried by the furnace-nozzle.

A practical embodiment of my invention is represented in theaccompanying drawings, in whichw l Figure 1 represents in verticalcentral section the lower portion of a smelting-furnace, a forehearthand its traveling support, and theinterposed separable valve, the valvemembers being' in position to open communication therethrough betweenthe nozzle of the furnace and the nozzle of the forehearth. Fig. 2 is aview in side elevation of thel separable valve, itsantifriction-support, and the means for operating the valve, the valvemember nearest the observerbeing removed. Fig. 3 is a top plan'view ofthe valve and a portion of the furnace-nozzle and vforehearth-nozzle,the valve being shown secured in position to open communication betweenthe furnace and forehearth. Fig. 4 is a horizontal longitudinal sectionthrough the valve and portions of the furnace-nozzle andforehearth-nozzle, the valvebeing shown secured in position to cut offcommunication between thepfurnace and forehearth; and Fig. 5 is asimilar View showing one member of the valve secured to thefurnace-nozzle, the other member of the valve secured to theforehearth-nozzle, and the two members of the valve released from eachother for permitting the removal of the forehearth with its valvemember.

The smelting-furnace represented herein is denoted b y 1, and itisprovided with the usual nozzle 2, hav-ing a peripheral iiange 3 and anoutlet 4c, leading from the interior of the furnace to the face of thenozzle.

The forehearth represented herein is denoted by 5,'and it is mounted ona suitable movable carriage 6, fitted to travel along the track-rails 7.

The nozzle of the forehearth is denoted by 8, and it is provided with aperipheral iiange 9 around its face andan inlet-bore 10 leading from theface of the nozzle to the interior Y of the forehearth. When theforehearth is brought into position in front of the furnace, theirrespective nozzles are located in alinement with each other.

A separable valve is interposed between the furnace and forehearthnozzles for opening and closing communication between the same, whichvalve comprises two longitudinal members 11 and 12. The member 11comprises an open barrel or cylinder 13 and a closed barrel or cylinder14, having inner and outer flanged face-plates 15 and 16. The barrel orcylinder 13 of the member 11 is partially closed by a lining 17, of{ire-brick or other suitable material, through which a bore 18 leadsfrom theinner to the outer face of the said member. The barrel orcylinder 14 is wholly closed by a filling 19, of fire-brick or othersuitable material, which may be packed by a suitable plate 20, of steel,if so The face of this filling 19 is flush with the face of the innerplate 15 of the said member 11. The other member, 12, is provided withinner and outer flanged face-plates 21 2Q, connected by an open barrelor cylinder 23 and a closed barrel or cylinder Q4, co

responding to the cylinders or barrels 13 and -14 of the member 11. Thecylinder or barrel 23 is partially closed by a lining 25, of firebrickor other suitable material, through which a bore 26 leads from the innerto the outer face of the valvel member. The barrel or cylinder 24 iswholly closed by a filling 27,

of fire-brick or other suitable material, which may be packed by a metalplate 28. The face IO of the filling 27 is flush with the outer plate 22of the valve member. The valve is moved back and forth to open or closecommunication between the furnace and forehearth by any suitable means,that shown herein comprising a piston 28", connected to the plates 16and 21 of the members by a removable clevis 29 and operated by acylinder 30 of any desired form. This valve has an antifriction-support,as follows: The plates 16 and 2O 21 of the two members are extendeddownwardly, as shown at 31 32, and are provided with Hanges 33 34, whichrest upon a series of rollers 35, mounted in a support 36. The twomembers of the valve are removably secured together by a series of bolts37, which pass through the iianges around the peripheries of one or bothof the pairs of barrels or cylinders 13 23 and 14 24. IVhereverpossible, I find it preferable to form open slots 38 through the angesfor facilitating the insertion and removal of the bolts. The member 11of the valve may be secured to the furnace-nozzle with its open barrelor cylinder 13 in communication therewith or its closed barrel orcylinder 14 in engagement with the face of the nozzle by means of aseries of bolts 39, passing through the flange 3 of the nozzle and theflange-plate 15. VVherever possible, holes 40, through which the 40bolts pass in the flanges, areopen through the periphery thereof forfacilitating the insertion and removal of the said bolts. The member 12of the valve may be similarly secured with its open barrel or cylinderin cornmunication with the forehearth-nozzle or its closed barrel orcylinder in engagement with the face thereof by means of a series ofbolts 41, passing' through the nozzle-flange 9 and the fiange-plate 22.The holes 42 in these flanges are also open through the periphery of thefianges wherever possible for facilitating the insertion and removal ofthe bolts.

The operation of my invention is as follows: Supposing the parts to bein the position in which they are shown in Fig. 1, the two members ofthe valve being bolted together and one member being' bolted to thefurnace-nozzle and the other member being' bolted to the forehearth,with the bores 18 and 26 in alinement with the bores 4 and 10, themolten metal is free to fiow from the furnace into the forehearth.I/Vhen it is desired to cutoff the flow into the forehearth, the membersof the valve are unbolted from their respective nozzles 24 intoengagement with the faces of the noz- Y zles. The two members are thenbolted to the nozzles, thus securely closing their bores 4 and 10. Thetwo members of the valve are then unbolted from each other and thepiston 28 disconnected by releasing the clevis 29. One member of thevalve-viz., the member 12-may then be removed with the forehearth, asshown clearly in Fig. 5, while the other member is still secured to thefurnace. Another forehearth may then be brought into position with itsmember of the valve and the parts secured in the position shown in Fig.1.

It will be seen that by the use of the separable valve herein shown anddescribed I am enabled to obtain a complete cut-off ofthe furnace andthe forehearth before the forehearth is removed. Furthermora it will beseen that I am enabled to more -rapidly manipulate a number offorehear'ths, so as to bring them into position tovreoeive the moltenmetal fromy the furnace and toremove them while the furnace is inoperation.

It is evident that changes might beresorted to in the form,construction, andi arrangement of the several'parts without-departingfrom the spirit and scope of' my invention. Hence I do not wish to limitmyself strictly to the structure herein set forth; but

What I claim is- 1. The combination with a furnace and a forehearth, ofan interposed separable cut-off valve arranged to open and closecommunication between the two.

2. The combination with a furnace anda forehearth, of an interposedseparable cut-off valve and means for removably securing one member ofthe valve to the furnace, the other member of the valve to theforehearth and the two members of the valve together.

3. rIhe combination with a furnace and a forehearth, of an interposedcut-off valve, means for operating the valve to open and closecommunication between the furnace and forehearth and anantifriction-bearingfor the valve.

4. rIhe combination with a furnace and ay forehearth, of a cut-off valvecomprising two members, each member having anopen portion and a closedportion and means for removably securing the open portion or the closedportion of each member to its respective furnace or forehearth.

5. A eut-off valve for furnaces and forehearths comprising twolongitudinal members, each consisting of face-plates, anintermediateopen barrel or cylinder and an intermediate closed barrel or cylinder.

6. The combination with a furnace and a forehearth havingfiangednozzles, of an interposed cut-off valve comprising two members havingfianged plates, bolts for securing the IIO adjacent flanged plates ofthe two members toence of two Witnesses, this 27th day of March, getherand bolts for securing the remaining 1903. iianged plates of the membersto their respective flanged nozzles of the furnace and fore- ALFRED EMANCHESTER 5 hearth. Witnesses:

In testimony that I claim the foregoing as JOHN E. DWIGHT,

my invention I have signed my name, in pres- DYKE KEEDY.

